Wide-frequency square-wave transformer for measurement and protection and manufacturing method thereof

A manufacturing method and technology for transformers, which are used in broadband transformers, inductance/transformer/magnet manufacturing, transformers, etc., can solve problems such as inability to meet, and achieve the effect of low waveform restoration distortion.

Active Publication Date: 2010-06-16
WUHAN PINGGAO NETWORK ELECTRIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The existing voltage transformers with a voltage level of 12KV and above have an AC 50Hz working condition and a sine wave voltage waveform, which cannot meet the special working conditions where the working frequency variation is 50-2000Hz and the voltage waveform is a square wave.

Method used

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  • Wide-frequency square-wave transformer for measurement and protection and manufacturing method thereof
  • Wide-frequency square-wave transformer for measurement and protection and manufacturing method thereof
  • Wide-frequency square-wave transformer for measurement and protection and manufacturing method thereof

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Experimental program
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Embodiment 1

[0035] Embodiment 1: as figure 1 As shown in -4, a broadband square wave transformer for measurement and protection has an iron core 1, a winding 2, and a casing cast with insulating materials; The R-shaped iron core 1; the size range of the iron core 1 is: an area of ​​2700-3000 square millimeters; the length of the magnetic circuit is 600-630 mm; the further value range of the size of the iron core 1 is: an area of ​​2800-3000 square millimeters; The length of the magnetic circuit is 600-620 mm. The dimensions of the iron core 1 in this embodiment are: the area is 2800 square millimeters; the length of the magnetic circuit is 630 millimeters. The winding 2 is composed of a primary winding 3 and a secondary winding 5, there is a shielding layer 8 between the primary winding 3 and the secondary winding 5, and between the winding 2 and the core 1; the primary winding 3 is used to connect the copper mother The input terminal 4 of the row; the secondary winding 5 has an output ...

Embodiment 2

[0036] Embodiment 2: Different from the above embodiment 1, the size of the iron core is: the area is 2700 mm2; the length of the magnetic circuit is 600 mm.

Embodiment 3

[0037] Embodiment 3: Different from the above Embodiment 1, the size of the iron core is: the area is 3000 mm2; the length of the magnetic circuit is 620 mm.

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Abstract

The invention relates to a wide-frequency square-wave transformer for measurement and protection and a manufacturing method thereof. The square-wave transformer is used for measuring and protecting electrical parts and equipment and belongs to the technical field of electrical measurement and protection, comprising an iron core and a winding, wherein the iron core is of an R type iron core processed through vacuum high-temperature annealing, cooling and non-oxidation treatment; the size of the iron core is 2700-3000 square millimeters in area; the length of the magnetic path is 600-630 millimeters; and the winding comprises a first winding and a second winding. The transformer has the advantages of large variation range of working frequency value, square wave of voltage waveform, high requirement on precision, little distortion of waveform restoration, high grade of voltage withstand, high mechanical strength and good protective performance.

Description

technical field [0001] The invention relates to a wide-band square-wave transformer for measurement and protection and a manufacturing method thereof. The wide-band square-wave transformer is used for the measurement and protection of electrical devices and equipment, and belongs to the technical field of electrical measurement and protection. Background technique [0002] The existing voltage transformers with a voltage level of 12KV and above have an AC 50Hz working condition and a sine wave voltage waveform, which cannot meet the special working conditions where the working frequency variation is 50-2000Hz and the voltage waveform is a square wave. Contents of the invention [0003] An object of the present invention is to provide a device that can meet the operating frequency change value of 50-2000Hz, the voltage waveform is square wave, and requires high precision, low distortion of waveform restoration, high withstand voltage level, high mechanical strength, and good...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01F19/06H01F38/00H01F27/24H01F27/28H01F27/32H01F41/02
Inventor 蔡佰鸣乔丰收刘斌李承正周瑜玥
Owner WUHAN PINGGAO NETWORK ELECTRIC
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